<br>beautiful! Thank you. (example i pasted back is 3 ds's - working.)<br><br>/apps/epic/rrdtool-1.2.99907080300/bin/rrdtool graph /apps/epic/apache-2.0.61/htdocs/test/test.png -aPNG -se-3d -e1207628520 -l0 DEF:defwww100=/data01/epic/rrd/net/snmp/www100/.1.3.6.1.2.1.25.1.6.0.rrd:epoch:AVERAGE DEF:defwww101=/data01/epic/rrd/net/snmp/www101/.1.3.6.1.2.1.25.1.6.0.rrd:epoch:AVERAGE DEF:defwww102=/data01/epic/rrd/net/snmp/www102/.1.3.6.1.2.1.25.1.6.0.rrd:epoch:AVERAGE CDEF:ds_u0=TIME,1207369320,LT,defwww100,TIME,1207455720,LT,defwww101,defwww102,IF,IF VDEF:vdsmax0=ds_u0,MAXIMUM "LINE1:ds_u0#ff0000:blah" "GPRINT:vdsmax0:Max %10.3lf %S"<br><br><br><br><b><i>Simon Hobson <linux@thehobsons.co.uk></i></b> wrote:<blockquote class="replbq" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> Ryan Kubica wrote:<br>>What I am trying to do is take two or more datasources with <br>>different time ranges and merge them
into one CDEF for display <br>>(graph and legend.)<br>><br>>Example:<br>><br>> ds foo1 - start 7 days ago, end 6 days ago<br>> ds foo2 - start 6 days ago, end 5 days ago<br>> ds foo3 - start 5 days ago, end now<br>><br>> cdef is foo1 or foo2 or foo3<br>><br>>I have the correct time alignments for the adjacent time intervals, <br>>ie: foo1 ends 60 seconds before foo2 starts on a 60 second interval <br>>step.<br><br>OK, for two data sources I have this in a graph definition :<br><br> DEF:data1=${RRDPath1}/${RRDName1}:${Selection}:AVERAGE<br> DEF:data2=${RRDPath2}/${RRDName2}:${Selection}:AVERAGE<br><br> CDEF:data=TIME,${ChangeDate},LT,data1,data2,IF<br><br>It's part of a shell script, so using normal Bash variable sustitutions.<br><br>For three sources just expand as required, I think this would do it <br>(with the proviso that changedate2>changedate1) :<br><br>
<br>CDEF:data=TIME,${ChangeDate1},LT,data1,TIME,${ChangeDate2},LT,data2,data3,IF,IF<br><br></blockquote><br><p> __________________________________________________<br>Do You Yahoo!?<br>Tired of spam? Yahoo! Mail has the best spam protection around <br>http://mail.yahoo.com